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XPS, AES and SEM analysis of recent dental implants

Artikel i vetenskaplig tidskrift
Författare Byung-Soo Kang
Young-Taeg Sul
Se-Jung Oh
Hyun-Ju Lee
Tomas Albrektsson
Publicerad i Acta Biomaterialia
Volym 5
Nummer/häfte 6
Sidor 2222-2229
ISSN 1742-7061
Publiceringsår 2009
Publicerad vid Institutionen för kliniska vetenskaper
Sidor 2222-2229
Språk en
Länkar dx.doi.org/10.1016/j.actbio.2009.01...
Ämnesord Clinical dental implants; Surface chemistry; Morphology; X-ray photoelectron spectroscopy (XPS); Titanium
Ämneskategorier Elektrofysik, Biomaterial

Sammanfattning

Today surface chemistry modifications of titanium implants have become a development strategy of dental implants. The present study investigated the chemistry and morphology of commercially available dental implants (Nobel biocare TiUnite, Astra AB OsseoSpeed, 3i Osseotite, ITI-SLA). X-ray photoelectron spectroscopy (XPS) and auger electron spectroscopy (AES) were employed for the analysis of surface chemistry. The morphology was investigated by scanning electron microscopy (SEM). The present study demonstrated the major differences of surface properties, mainly dependent on the surface treatment used. The blasting and acid etching technique for the OsseoSpeed, Osseotite and SLA surfaces generally showed mainly TiO2, but a varying surface morphology. In contrast, the electrochemical oxidation process for TiUnite implants not only produces microporous surface (pore size: 0.53.0μm), but also changes surface chemistry due to incorporation of anions of the used electrolyte. As a result, TiUnite implants contain more than 7 at% of P in oxide layer and higher amounts of hydroxides compared to the other implants in XPS analysis. F in OsseoSpeed implants was detected at 0.3% before as well as after sputter cleaning.

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